P-N organic battery, a method of fabricating the battery thereof

Abstract

In the present disclosure, a p-n organic battery comprising a p-type organic semiconductor and n-type organic semiconductor as active electrodes, anode and cathode current electrodes, separator and electrolyte and a method of fabricating the same is disclosed. The p-n organic battery has an p-type organic semiconductor separated from a n type organic semiconductor by an aqueous electrolyte solution, contained in an insulating vessel with suitable terminals (not shown) being provided in electric contact with the anode current electrode and the cathode current electrode. The aqueous electrolyte can comprise water, and a transition metal salt such as NiCl 2 , CuCl 2 dissolved in the water.

What is claimed is: 
     
       1. A p-n organic battery comprising:
 a p-type organic electrode, a n-type organic electrode, said p-type and n-type organic electrodes being separated by an organic separator in a metal chloride electrolyte, said p-type electrode being an organic semiconductor and said n-type electrode being an organic semiconductor. 
 
     
     
       2. The p-n organic battery of  claim 1 , wherein the n-type and p-type organic semiconductors are composed of compressed, nano structured, powdered carbon based organic semiconductors. 
     
     
       3. The p-n organic battery of  claim 2 , wherein the p-type organic semiconductor is selected from a group of organic semiconductors consisting of any or a combination of nano polyaniline or its nanocomposites having polyaniline and graphene. 
     
     
       4. The p-n organic battery of  claim 2 , wherein the electrical conductivity of the nano polyaniline is at least 3×10 −6  S/cm. 
     
     
       5. The p-n organic battery of  claim 1 , wherein the N-type organic semiconductor is selected from a group of organic semiconductors consisting essentially of any or a combination of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA), fullerene, fullerene 70. 
     
     
       6. The p-n organic battery of  claim 5 , wherein the electrical conductivity of the 3,4,9,10-perylenetetracarboxylic dianhydride is at least 10 −6  S/cm. 
     
     
       7. The p-n organic battery of  claim 1 , wherein at least one of the organic semiconductors has a conductivity of least 10 −6  S/cm. 
     
     
       8. The p-n organic battery of  claim 1 , wherein the total thickness of the battery electrodes is in a range of about 0.1 mm to about 1 mm. 
     
     
       9. The p-n organic battery of  claim 1  wherein n-type organic semiconductors comprise small molecule compounds and aromatic compounds. 
     
     
       10. The p-n organic battery of  claim 1 , wherein concentration of CuCl 2  in the metal chloride electrolyte ranges from about 0.5 M to about 5 M. 
     
     
       11. The p-n organic battery of  claim 1 , wherein the open circuit voltage of said organic battery is at least 1 V. 
     
     
       12. The p-n organic battery of  claim 1 , wherein the short circuit current of said p-n organic battery is at least 35 mA. 
     
     
       13. The p-n organic battery of  claim 1 , wherein a maximum power of p-n organic battery is at least 11 mW. 
     
     
       14. The p-n organic battery of  claim 1 , wherein the p-type electrode composed of nano polyaniline generates a power ranging from 5 mW to 15 mW. 
     
     
       15. A method of fabricating a p-n organic battery, the method comprising
 sandwiching a p-type organic electrode and an n-type organic electrode, each comprising an organic semiconductor, on opposing sides of an organic separator in the presence of a metal chloride electrolyte, wherein the p-type organic electrode, the n-type organic electrode, and the organic separator are layered to form a p-n organic battery structure. 
 
     
     
       16. The method of  claim 15 , wherein the p-type organic electrode is an organic semiconductor selected from a group of organic semiconductors consisting of any or a combination of nano polyaniline or its nanocomposites having polyaniline and graphene. 
     
     
       17. The method of  claim 15 , wherein the n-type organic electrode is selected from a group of organic semiconductors consisting essentially of any or a combination of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA), fullerene, fullerene 70.